Finding the Fourth Proportional to 9,358.47, 12,913.41 and 5,581.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,358.47 : 12,913.41 = 5,581.32 : x
2. Step 2: Convert to fraction form
   9,358.47/12,913.41 = 5,581.32/x
3. Step 3: Cross multiply
   9,358.47x = 12,913.41 × 5,581.32
4. Step 4: Simplify right side
   9,358.47x = 72,073,873.50
5. Step 5: Solve for x
   x = 72,073,873.50/9,358.47
6. Step 6: Final answer
   x = 7,701.46